Home / 30,727.44-42,409.96-19,957.28

Finding the Fourth Proportional to 30,727.44, 42,409.96 and 19,957.28

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Solution

The fourth proportional to 30,727.44, 42,409.96 and 19,957.28 is: 27,545.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,727.44 : 42,409.96 = 19,957.28 : x
  2. Step 2: Convert to fraction form
    30,727.44/42,409.96 = 19,957.28/x
  3. Step 3: Cross multiply
    30,727.44x = 42,409.96 × 19,957.28
  4. Step 4: Simplify right side
    30,727.44x = 846,387,446.51
  5. Step 5: Solve for x
    x = 846,387,446.51/30,727.44
  6. Step 6: Final answer
    x = 27,545.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.